Title :
A 20W Ka-band radial Solid-State Power Amplifier with 20% associated Power-Added Efficiency
Author :
Fraysse, Jean-Philippe ; Richard, Joyce ; Maignan, M. ; Soubercaze-Pun, Geoffroy ; Lapierre, L. ; Denoual, J.-M. ; Peden, Alain
Author_Institution :
THALES ALENIA SPACE, Toulouse, France
Abstract :
This paper presents a high power and high efficiency Ka-band Solid-State Power Amplifier based on the uses of an efficient radial power-combining structure for space applications. This design was validated by the measurement of a 16-way divider/combiner and the characterization of a 16-way High Power Amplifier. Based on the use of 1.3W elementary amplifier modules, the radial HPA delivers an output power higher than 20W with an associated Power-Added Efficiency close to 20% from 35.3GHz to 36.5GHz. The loss of the radial combiner was measured at around 0.3dB. The HPA volume is equivalent to a cylinder of 20cm diameter and 7cm height.
Keywords :
microwave circuits; microwave power amplifiers; power combiners; power dividers; 16-way divider/combiner; Ka-band radial solid-state power amplifier; elementary amplifier modules; frequency 35.3 GHz to 36.5 GHz; high power amplifier; power 1.3 W; power 20 W; power-added efficiency; radial HPA; radial combiner; radial power-combining structure; space applications; Loss measurement; Microwave amplifiers; Microwave integrated circuits; Power amplifiers; Power generation; Power measurement; Thermal management; SSPA; amplifier; combining technique; radial;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
